/*
  Multple serial test

*/


void setup() {
  // initialize two serial ports:
  Serial.begin(57600);
  Serial1.begin(57600);
  Serial2.begin(57600);
  Serial3.begin(57600);
}

void loop() {

  Serial.println("Port 0");
  delay(100);
  Serial1.println("Port 1");
  delay(100);
  Serial2.println("Port 2");
  delay(100);
  Serial3.println("Port 3");
  delay(100);
  }
